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发明名称
Electronic device
摘要
申请公布号
US2604588(A)
申请公布日期
1952.07.22
申请号
US19480059103
申请日期
1948.11.09
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
WILLIAMS OWEN GRIFFITH
分类号
H04Q11/04
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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